Vehicle stop mechanism



Sept. 14 1926.

W. A. HAEGELE VEHICLE STOP MEcHANIsM Y Filed Ju'ly 2. 17925 INVENTOR flllffadl? BY ATTORNEYS Patented sept. 14, i926.

UNITED STATES WILLIAM ANDREW HAEGEL, or ELIZABETH, NEW,,ann-snr.l

VEHICLE STOP MECHANISIV. Y

Application filed July 2, 1925- Serial No. `411,155.k f

This invention relates to the class of mechanisms or apparatuses for preventing the translatory movementvof a vehicle.

rlhe prime object of the present invention i is to improve mechanisms and apparatuses of this character by providing a mechanism or apparatus which will be more thoroughly efficient and effectual in carrying out` the result looked for.

Another object of the :invention is to mount the chocks in a novel manner so that they will function in conjunction with certain ofthe road wheels of the running -gear of a vehicle so that there will bea more reliable and effectual application in the prevention of the translatory movement of the vehicle.

- lVith the foregoing and other objects in view, the invention resides in the particular provision, relative disposition and combination of the elements or parts hereinafter fully described and illustrated in the accompanying drawing, in which- Figure 1 is alongitudinal sectional view through the running gear of a vehicle such as is used in connection with hoisting ap paratus with the stop mechanism of the present invention applied thereto, the same being shown in condition for preventing the translatory movement of t-he running gear in one direction.

Fig. 2 is a perspective view of the main parts of the mechanism.

Fig. 3 is a detail sectional view through one of the radius devices.

In the practice of the present invention the stop mechanism or apparatus will be arranged for operation on the running gear of a vehicle which may be of any type. In Vthe 'present instance the running gear 10 shown is of the type upon 'which vhoisting apparatus is mounted. The running gear 1() includes a frame 11, axle 12 and road wheels 13.

The mechanism of the present invention with which the running gear is equipped, generally stated, comprises chocks 14, devices 15 which are preferably swingingly mounted from the axle 12 and which carry the chocks 14 to control them in the chocking or blocking operation and to swingthem clear of the tread surfaces of the road wheels 13, and means 16 for lowering the chocks 14 to active positions and for raising the chocks to inactive positions.

More speciiically stated the invention consists of the details and operates in a manner presently to be described. Each of the devices 15 comprises attaching means 17, a

barrel 18 .having aremovable cap 19`with.

a hole 20therein, a block 21 arranged for movement in the bai'rel 1S, a spring 22 arranged in the barrel 18, which spring has a normal tendency to move .the block toward the capped end of the barrel 18, and the element 23 which is .screw threaded as at 2 4, the threads of which coact with the threads of a bore 25 in the block 21v to render the element 2 3 adjustable with respect thereto,A

and` said element having an eye 26 and set screw 27. The chocks 14 may be made of any preferred wear-resisting material, and each is substantially wedge-'shaped with a flat serrated portion V28 and a curved portion 29. A rod 3() is employed and one chock 14 is arranged at each end of the rod 30 and is fixedly secured thereto. The rod 30 entends through the eyes 26 of the'devices 15, and the set screws 27 serve to tightly hold the rod in said eyes.` The means 16 yin the present embodiment, includes an arm 31 which is loosely connected as at' 32 to the rod 30 and pivotally connected as` at 33 to a lever 34 mountedfor rockingvmovement on.

a shaft 35 carried in any suitable manner by vthe frame 11, said lever having connected thereto as at 36 a reach-rod 37 connected as at 38to the lower end of a hand lever 39 pivoted as at 40. It will now be understood that upon movement of the lever 39 movement will be imparted to the lever 34 which in turn imparts movement to the arm 31 and as a result the chocks 14 at the discretion of the operator can be raised and lowered at will, partly controlled however by the devices 15 which have a normal tendency to throw the chocks 14 radially outward away i from the treadsurfaces of the road wheel when the chocks are being raised t-o inactive positions. rl`he lever39 carries the usual spring latch 4l,l means 42 for operating the same, and a segment 43 in the notches of which the latch 41 is adapted to beprojected and vfrom which it is withdrawn to hold the chocks in the different positions to which they are moved and to release the chocks.

From the foregoing it will be apparent that when the chocks 14 are thrown to theV position shown in Fig. 1 they will be in contact with the road surface and respectively in the` path of travel of the road wheels 13. In this position the chocks 1.4.

will be under the influence of the devices 15 which tend to move said checks away from the tread surfaces oi the road wheels and which also functionI to permitthe tread surfaces of the road wheels to irictionally impinge against the chocks curved portions 29. Rotation oi the road Wheels is prevented due to the impingement mentioned and the fact that the chocks are in contact with' the road surface'. The chocks are first brought into contactwith' the road surface which is followed immediately by the iinpingementoi the tread surfaces, and this results in the prevention oi the translatory movement oi the vehicle.

I claim L l. rhe combination withV the running gear of a vehicle' including road wheel's'; ci a stop mechanism including cho'cls capable of "beingm'oved to active positions iny Contact with the road surface in `iuiztaposition to the tread surfaces of said road wheels, said checks being under the influence of means tending to move said chocls away from said tread surfacesv and also functioning to permit the tread surfaces oi said road wheels to irictionally impinge against portions of the chocks to prevent theV rotation of the road wheels when thechocks are in Contact with the road surface, means including a loose connection Vforv eiiecting the movement or" said checks to inactive and active positi'ons, and means for holding said chocks in their inactive positions. Y

2. The' combination with Jthe running gear of a vehicle including an axle and road wheels mountedvon said axle; ci chocls, devices extending radially iroml vsaid aXie which carry said chocks, mechanism con*- nected to said chocks and operable to raise said chocls to inactive positions and to lower said choclis to active positions with respect to the tread surfaces oi said road Wheelsnsaid' mechanism including a. rod connected to each oi said chocls, an arm loosely connected to said rod, a bell cra-nk lever, a hand lever,` and a' reach-rod connecting said hand lever and said' biell crank lever. y

In apparatus oi the character described',l chocks, road wheels with the tread surfaces 0i which said chocls coact, an aX-le on which the road wheels are mounted for rotation, and devices for controlling said checks, each of said devices comprising at# taching means by virtue oi which' the' saine is swingingly mounted on said Ysaxl'ef a barrel, a block arranged for movement in saidbarrel, an element having'an' eyead# justa'bly carried by said block, and means in' said barrel pressing against said block to move the sameV one direction and permit ting the same to be moved in anA opposite direction a rod, one oi said checks being supported at each en'd of said rod,4r said rod extending through the eyesoi the elements of said devices' andI lixedl7 Skiicuredv to said elements, and means connected to' said ro'd for swinging said devices an'd tov move said chocls into and out of operative relation tof the `road surface and the' tread surfaces of said' roadfwheels respectively. A

WILLIAM NDREV'TIAEGELEL 

